So many herbs, in fact, to try it completely, the amount of real yàn required is massive. Because it's not just a pair of pairs, sometimes you need three combinations, four combinations, or even more combinations. This is not counting, sometimes after the reaction, the substance obtained by the reaction is combined with the rest of the herbs to see if a new substance can be obtained. By analogy, such an attempt is simply immeasurable.

There are so many realities, I am afraid that one person will be poor all his life, and he will not be able to do it all. And Nie Fei has no intention of trying all the experiments, he believes that when he tries to a certain extent, he can deduce the conclusion of other real yàn according to the actual yàn that he has done, which is the ultimate goal of Nie Fei. It was with this purpose in mind that every time he tried, Nie Fei completed it extremely carefully and carefully, and then recorded the process and results of the realization on a jade plaque.

In the past few days, Nie Fei tried more than 30 combinations, of which there were 24 combinations, but there was no reaction, and there were only six combinations that produced reactions, and the success rate of the reaction was 20%. This was greatly unexpected by Nie Fei, he didn't expect that this kind of random combination would actually have so many reactions, which was simply unimaginable in the previous world.

According to the nature of the two herbs that produced the reaction, Nie Fei had a rough judgment on what effect the final product had. In fact, this kind of judgment is only in two aspects, mainly whether it is harmful or beneficial to the human body. This kind of judgment can be said to be extremely inaccurate, because Nie Fei's basis is only the nature of the two herbs participating in the reaction, and the accuracy rate is only about fifty percent. That said, it is at least a judgment, much better than nothing at all.

Whatever is the final product, Nie Fei judged that it was beneficial, and Nie Fei gave this product to the fire corpse, that is, the Flying Rain corpse puppet. And Nie Fei judged that the product was harmful, and Nie Fei did not hesitate to give it all to the cold corpse. Through the two corpse puppets, the physical condition after ingesting these reactants, Nie Fei came to determine what the effect of these products was.

Suddenly, more than ten days passed. In the past ten days, Nie Fei didn't know how much he had done, he didn't sleep, he kept mixing, reacting, and effecting, summarizing, recording, and repeating the process. As for how many times he tried it, even he couldn't remember it, anyway, there were records to check, and he could see everything he had done at that time. In the past ten days, Nie Fei has experienced that feeling again, the feeling of working day and night in the real room in his previous life.

Of course, this work can never be done, and Nie Fei is also well aware of this, he just wants to use these practical results to deduce thousands of reactions in this world's immortal cultivation world.

On this day, Nie Fei walked out of the cave where he was doing, looked in the direction of the entrance of the cave, and nodded slightly. Although he was busy in the absence of sleep and food, he kept it all in his heart as time passed. He knew that this day was exactly six months and twenty days after he stepped into the cave, and it was time for him to get out of the cave and meet the challenges outside.

Nie Fei knew in his heart that what he was going to face this time was Shi Kuoshan, whose cultivation had reached the completion of foundation building, and Shi Kuoshan's disciples were innumerable, and there were not a few who cultivated during the foundation building period. Therefore, it is not a good way to fight hard.

Nie Feitong Guò has also achieved some results in the past month. At the moment, he spent another two days, focusing on refining several medicines and putting them in a storage bag.

On this day, Nie Fei tidied up the cave mansion, packed up all the utensils and medicinal herbs he used to make the real yàn, and properly placed the two corpse puppets in a cave, and then went out of the cave mansion.

Outside, it was dusk at this time, and the western canopy was a brilliant blood-red. Nie Fei glanced at the sky and nodded slightly, "What does this celestial phenomenon imply?"

......

In the cave at the top of the Absolute Heaven Peak, Shi Kuoshan finally woke up from his cultivation.

He slowly stood up, opened his eyes, and glanced around, and suddenly saw a huge rock protruding from the stone wall of the cave. Shi Kuoshan waved his hand lightly, and a trace of the aura of the Dead Earth Exercise enveloped the rock in an instant. Suddenly, the whole rock fell from the stone wall, and before it could reach the ground, it turned into a pile of dust.

Shi Kuoshan nodded, very satisfied with his exercises. This time, he was ready to attack the Jindan Period, but the impact on the Jindan Period was too difficult, and Shi Kuoshan did not expect it in advance. Seeing that the time was slowly approaching, he had no time to attack again, so he stopped his cultivation and woke up from his cultivation state. Although there was no success in the Jindan period this time, Shi Kuoshan did not gain at all, his cultivation had reached the realm of false pills, and he was only one step away from Jindan, and he only needed to retreat for a few more months before he could succeed in the Dan.

The realm of false pills, which is a level higher than the foundation building consummation. Shi Kuoshan's attack on Jindan was mainly to deal with Yang Tianju, although it was now a fake pill realm, it was more than enough to deal with Yang Tianju. Therefore, Shi Kuoshan terminated his cultivation ahead of schedule, and after he eliminated the Heavenly Valley, it was not too late to truly form a pill. Shi Kuoshan looked up to the sky and laughed a few times, and the laughter shook the entire cave mansion, as if these rocks were also afraid of Shi Kuoshan, who was cultivating as a fake pill.

Shi Kuoshan laughed for a while before he gradually stopped laughing. He pointed in the direction of Tiangu and said loudly: "Yang Tianju, old horseman, when I consolidate my cultivation for two days and leave the cave mansion, I will go to you to settle accounts." When the time comes, I will wipe you out from the valley of heaven and let you die at my hands. Haha......" At this, I couldn't help but laugh proudly. The three forces, Litiangu, Yanfenggang, and Feihu, have a grievance that has lasted for more than a hundred years, and it is finally time for it to come to an end.

Leaving the Heavenly Valley, Yang Tianju sat in the hall, but his face was a gloomy mist. Ever since the Yi Crystal Cover Array was activated, a smile had disappeared from Yang Tianju's face, and all the people in the Heavenly Valley, including Yang Tianju's several major disciples, had never seen Yang Tianju smile from that moment on. It stands to reason that Yang Tianju is the cultivation of the foundation and perfection, and he is the backbone of the people in the Heavenly Valley, even if he is worried in his heart, he should not show it. However, the demise of Tiangu is a foregone conclusion, and there is no need for Yang Tianju to disguise.

Yang Tianju firmly believes that this is because there is a large barrier, people outside can't get in, and people inside can't get out. If the people inside can go out, then at least half of the people who leave the valley will leave the valley.

And what made Yang Tianju even more sad was that seeing that half a year had passed, and the time of seven months was not far away, the day when the Yi Crystal Cover Array would be shattered was approaching. Once the Great Array is shattered, Litian Valley will definitely suffer a catastrophe.